Mode oe securing hubs to axles



C. DARLING.

Attaching Hubs to Axles.

Patented Aug, 15, 1854.

I Witnesses= lnventor= WW f/ffda COOK DARLING, OF U TIGA, NEW YORK,

, To all whom it may concern:

MODE OE SECURING TO AXLES.

, Specification of Letters Patent No. 11,521, dated August 15, .1854.

Be it known that I, Coors;

city of Utica, in the county of Oneida and State of New York, have invented a new and useful Mode of Securing the WVheels of Carriages on their Axles; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the annexed drawings, and to the letters. of reference marked thereon, which make a part of this specification. The nature of my invention consists in 1 providing a mechanical arrangement of parts to be fastened upon the outer, or front end of the wheel hubby which a pair of movableguard plates are made to embrace the end of the axleas it protrudesthrough the hub, whenthe wheel is put on, and to hold the wheel and prevent it from coming off, unless these guard plates are forced apart so as to let the knob which is formed on the end of the axle pass between them. These parts are all covered by a neatly finished cap which isscrewed on permanently in front; and the operation of loosening the wheel so as to permit it to be taken off is pera formed by the use of a key applied from without through a key hole in the faoe of the cap, without taking off the cap, or unscrewing anynuts, or fastenings whatever. When the wheel is to be replaced it is simply to be shoved on to the axle in the usual way, and the fastening takes place by the operation of theparts themselves.

In the annexed drawings, Figure .1, ex-

hibits the exterior of the hub on the axle, the

cap A, co-veringthe parts above mentioned. Fig. 2, is the. same withthe cap off showing these parts in theirpro-per connection. a, b, 0, is the base, belng a clrcular plate, or ringof cast lron, or other su table metal,

1 corresponding in diameter to the end of the hub, and screwed permanently thereto. It has a hole in the center for the passage of a knob formed on the end of the axle.

d, and e, are the movable guard plates which seize andhold the axle; and f, is a cone shaped knob on the end of the axle by which it is held. There is a recess cast in the face of the circular plate a, (2,0, of a dove-tail shape and the guard plates cl, and e, are so constructed as to slip into this re cess for a portion of their depth and to move easily therein. Fig. 3, shows these plates separately. The elliptical orifice g, is

formed in the center between these plates,

edge of each plate at opposite points, as here shown. Vhen the plates are closed together, they come in contact only at the points 72., and a; the parallel sides is, Z, receding from each other. to give space for the operation of the key as hereafter described.

In Fig. 2, the guard plates cl, and e, are seen closed together behind the knob 7. They are closed into a circular groove turned into the axle, leaving the conical knob f, on

ward against these plates, and prevent their spreading while the wheel is inuse. The permanent plate a, b, c, is cut away for a portion of its thickness at each side to permit the action of the springs.

The pintle P, is inserted in the solid plate in the rear, on which the key (Fig. 4) is to turn in disengaging the wheel.

H, is theaxle, being here broken off; the front extremity being the knob f, (Fig. 2).

It is now evident that if the key (Fig. 4) is inserted upon the pintle P, (Fig. 2,) the fangs r, and t, settling into the cavity be tween the plates and is slightly turned either to the right or left, the guard plates (Z, and

6, will be forced. apart, and the orifice g,

able force, and the conical shaped knob f,

(Fig. 2,) meeting the orifice g,-(Fig. 3,) forces back the guard plates, admitting the .passage of the knob; the plates again clos ing behind 'it and securing the wheel as before described.

. The guard S, (Fig. 1) being placed over the keyhole T, all dust and filth are effect-ually excluded.

y I by an arched depression being cast in the l DARLING, of the I do not claim as new the holding on the Wheel by means of a groove encircling the front end of the axle, because that feature of the fastening has been used before. Neither do I claim operating the guard plates, or collar closing over the groove, by means of the key in front; because that device has also been used before. Neither do I claim as new slmply the conical end of the axleybecause that feature has also been used before. But

What I do claim as new, and desire Letters Patent for, is

The combination and arrangement. of the several parts, viz: The axle with the conical 15 end; the guard plates and the means of operating the same by the use of the key in front.

COOK DARLING. Witnesses:

WM. BAKER, D. GILLMoRE. 

